The Potential of Using Halofuginone to Treat Fibrosis-Related Diseases
Fibrosis is a normal physiological response to injury. It acts to deposit connective tissues in the injured area, thereby promoting healing and reinforcing tissue remodeling. However, this normal physiological response can sometimes overshoot and that’s when fibrosis can be dangerous. Such cases are what we refer to as fibrosis-related diseases. In a fibrosis-related disease, what happens is, the regulatory pathway for fibrosis is disturbed by pathogens. Cells that take part in the physiological response start acting abnormally, causing excess deposition of connective tissues in the injured area. This excess deposition can interfere with the normal function and architecture of the underlying tissue or organ. If not stopped, it can completely overwhelm the tissue (or organ) and cause tissue death. Over the years, several compounds have been tested for treating fibrosis-related diseases. But no compound has received as much attention as halofuginone — a synthetic halogenated variant of febrifugine.
Halofuginone – Can It Treat Fibrosis-Related Diseases ?
The early signs are positive : Halofuginone has been found to inhibit the expression of collagen type 1 protein (a key mediator of fibrosis-related diseases) in cultures of murine, avian and human skin fibroblasts. All fibrosis-related diseases are characterized by high expression of collagen type 1 proteins. If the expression of this protein can be attenuated in the protagonist cells orchestrating the fibrosis response, these diseases can be controlled. And so, halofuginone was put to test to see how effectively it could inhibit the expression of collage type 1 proteins in abnormally-responding cells. Cell cultures were developed from biological samples taken from patients suffering from fibrosis-related diseases. Halofuginone was introduced inside these cultures. What was the result ? Scientists found a drastic decrease in the expression of collage type 1 proteins in the studied cells. Halofuginone has also been tested in animal models to great success, preventing collagen synthesis in mice and rats afflicted with cGvHD and pulmonary fibrosis. However, what has really piqued everyone’s interest in the compound is its ability to elicit the resolution of established fibrosis ; this property makes the compound unique. Yes, halofuginone has been found to avert fibrosis-related conditions in a research conducted on rats. What we are potentially looking at is a solution that may not only be able to stop excessive fibrosis but may also be able to treat it — completely ! A BONUS read :Analyzing the Versatility of Halofuginone